The formal name for the property
of equality that
allows one to add the same quantity to both sides
of an equation.
This is one
of the most commonly used properties for solving equations.
The formula tells us that if a = b, then a + c = b + c. The letters a and b stand for two separate numbers, our two twins, and the letter c
stands for what we give to each twin to keep them matching. So, for
example, if we add 1 to the left side of the equation, we must also add 1
to the right side of the equation. By doing this, we keep the equation,
the twins, the same. Answer: correct choice is B.
The answer to the question above is the second choice where s is added to both sides of the equation giving the final answer which is, p + s = q + s. All the other choices aside from that chosen do not represent an addition property of equality.
